CN112082468A - Ultrahigh frequency passive piezoelectric sensor with temperature compensation - Google Patents

Abstract

Translated fromChinese

本发明提出一种带温度补偿的超高频无源压电式传感器，包括能量采集模块、控制模块、数据存储模块、传感器模块与无线通信模块；本传感器工作时根据第一次接收到的超高频数据信息，能量采集模块采集到的足够的工作电量，由控制模块控制传感器模块里的温度传感器工作，并将温度传感器的数据信息存储在数据存储模块内；当本传感器收到第二次超高频数据信息时，控制模块控制传感器模块里的压电式传感器工作，并将采集到的压电式传感器数据根据第一次采集到的温度数据作相应的补偿后存储在存储模块内；当本传感器收到第三次超高频数据信息时，控制模块将相应存储在数据存储模块内部的数据信息通过无线通信模块发出。

The invention provides an ultra-high frequency passive piezoelectric sensor with temperature compensation, which includes an energy acquisition module, a control module, a data storage module, a sensor module and a wireless communication module; High-frequency data information, enough working electricity collected by the energy collection module, the control module controls the temperature sensor in the sensor module to work, and stores the data information of the temperature sensor in the data storage module; when the sensor receives the second time When the ultra-high frequency data information is obtained, the control module controls the piezoelectric sensor in the sensor module to work, and the collected piezoelectric sensor data is stored in the storage module after corresponding compensation according to the temperature data collected for the first time; When the sensor receives the third ultra-high frequency data information, the control module sends the data information correspondingly stored in the data storage module through the wireless communication module.

Description

Translated fromChinese

一种带温度补偿的超高频无源压电式传感器A UHF Passive Piezoelectric Sensor with Temperature Compensation

技术领域technical field

本发明涉及一种带温度补偿的超高频无源压电式传感器。The invention relates to an ultra-high frequency passive piezoelectric sensor with temperature compensation.

背景技术Background technique

为了获得传感器所处环境中的一些关键数据信息，现有通用的获取方法是将传感器安装后，利用有线或无线数据传输技术，把采样数据传递到接收端加以处理或直接显示。为了保证这系统能在一定的时间里正常运行，需要给系统提供电能，常见的方法是使用电池。In order to obtain some key data information in the environment where the sensor is located, the existing general acquisition method is to use wired or wireless data transmission technology to transmit the sampled data to the receiving end for processing or direct display after the sensor is installed. In order to ensure that the system can operate normally for a certain period of time, it is necessary to provide power to the system, and a common method is to use a battery.

而由于电池只能提供固定的电量，所提供有限的工作寿命，且电池使用完后会被废弃，对环境造成较大危害。However, because the battery can only provide a fixed amount of electricity, it provides a limited working life, and the battery will be discarded after use, causing great harm to the environment.

同时一些工作温度变化较大的条件下，压电式传感器检测到的物理特性变化量受温度影响较大，因此有必要对这些传感器检测到的数据信息加上温度补偿。At the same time, under the condition that the working temperature changes greatly, the change of the physical properties detected by the piezoelectric sensor is greatly affected by the temperature, so it is necessary to add temperature compensation to the data information detected by these sensors.

同时由于一些应用场合要求同时采集多种物理特性，比如温度，压力、加速度等需要同时测得，对电池的寿命进一步的减少。At the same time, because some applications require simultaneous acquisition of multiple physical properties, such as temperature, pressure, acceleration, etc., which need to be measured at the same time, the life of the battery is further reduced.

为此，有必要提供一种带温度补偿的超高频无源压电式传感器来克服上述缺陷。Therefore, it is necessary to provide an ultra-high frequency passive piezoelectric sensor with temperature compensation to overcome the above-mentioned defects.

发明内容SUMMARY OF THE INVENTION

本发明提供了一种带温度补偿的超高频无源压电式传感器，传感器无需依赖电池供电。The invention provides an ultra-high frequency passive piezoelectric sensor with temperature compensation, and the sensor does not need to rely on battery power supply.

为了解决上述技术问题，本发明所采取的技术方案为：一种带温度补偿的超高频无源压电式传感器，包括能量采集模块、控制模块、传感器模块、数据存储模块与无线通信模块,当带温度补偿的超高频无源压电式传感器第一次接收到的超高频数据信息时、能量采集模块采集到的足够的工作电量，由控制模块控制传感器模块里相应的温度传感器工作，并将温度传感器感应的温度数据信息存储在数据存储模块内；当带温度补偿的超高频无源压电式传感器收到第二次超高频数据信息时，控制模块控制传感器模块里的压电式传感器工作，同时将采集到的数据根据第一次采集到的温度数据作相应补偿后存储在存储模块内；当带温度补偿的超高频无源压电式传感器收到第三次超高频数据信息时，控制模块将相应存储在数据存储模块内部的数据信息通过无线通信模块发出。In order to solve the above technical problems, the technical solution adopted in the present invention is: an ultra-high frequency passive piezoelectric sensor with temperature compensation, comprising an energy acquisition module, a control module, a sensor module, a data storage module and a wireless communication module, When the UHF passive piezoelectric sensor with temperature compensation receives the UHF data information for the first time, the energy collection module collects enough working electricity, and the control module controls the corresponding temperature sensor in the sensor module to work. , and store the temperature data information sensed by the temperature sensor in the data storage module; when the UHF passive piezoelectric sensor with temperature compensation receives the second UHF data information, the control module controls the The piezoelectric sensor works, and at the same time, the collected data is compensated according to the temperature data collected for the first time and stored in the storage module; when the ultra-high frequency passive piezoelectric sensor with temperature compensation receives the third time When the ultra-high frequency data information is sent, the control module sends the data information correspondingly stored in the data storage module through the wireless communication module.

进一步地，所述能量采集模块用于收集配套读写器发出的超高频信号能量、用于该系统供电。Further, the energy collection module is used to collect the ultra-high frequency signal energy sent by the matching reader for power supply of the system.

进一步地，所述传感器模块包括温度传感器和压电式传感器。Further, the sensor module includes a temperature sensor and a piezoelectric sensor.

进一步地，所述数据存储模块用于存储温度传感器感知的数据信息，用于该系统在收到配套读写器发出的第二次超高频信号时控制模块对压电式传感器数据做出相应的补偿。Further, the data storage module is used to store the data information sensed by the temperature sensor, and is used for the control module to respond to the piezoelectric sensor data when the system receives the second ultra-high frequency signal sent by the matching reader. compensation.

进一步地，所述无线通信模块工作于超高频频段、并接收和发送超高频数据信息。Further, the wireless communication module works in the ultra-high frequency frequency band, and receives and transmits ultra-high frequency data information.

进一步地，压电式传感器模块包含可根据其检测的物理特性区分的形变传感器，压力传感器，位移传感器等。Further, the piezoelectric sensor module includes a deformation sensor, a pressure sensor, a displacement sensor, etc. that can be distinguished according to the physical properties it detects.

进一步地，无线通信模块发出的数据信息中包括所需的传感器数据信息和传感器系统本身的识别号，用于多个本发明的系统同时应用时区分。Further, the data information sent by the wireless communication module includes the required sensor data information and the identification number of the sensor system itself, which is used to distinguish when multiple systems of the present invention are applied simultaneously.

进一步地，带温度补偿的超高频无源压电式传感器所需的超高频信号能量由配套的读写器提供。Further, the ultra-high frequency signal energy required by the ultra-high frequency passive piezoelectric sensor with temperature compensation is provided by the matching reader.

该带温度补偿的超高频无源压电式传感器利用能量收集模块收集所处环境中的超高频电磁波信号能量并将该能量转换为系统工作的电能量。The UHF passive piezoelectric sensor with temperature compensation utilizes an energy collection module to collect UHF electromagnetic wave signal energy in the environment and convert the energy into electrical energy for system operation.

进一步地，三次超高频电磁波信号能量均由外部配套的读写器提供。Further, the three ultra-high frequency electromagnetic wave signal energy is provided by the external supporting reader.

进一步地，能量采集模块与无线通信模块有共用的物理组件，比如天线。Further, the energy harvesting module and the wireless communication module have common physical components, such as antennas.

进一步地，所述传感器模块包括温度传感器、压电式传感器，传感器模块可以是一个单独模块，也可以嵌入在控制模块里。Further, the sensor module includes a temperature sensor and a piezoelectric sensor, and the sensor module can be a separate module or embedded in the control module.

进一步地，所述压电式传感器模块为形变传感器、压力传感器或位移传感器；Further, the piezoelectric sensor module is a deformation sensor, a pressure sensor or a displacement sensor;

进一步地，所述控制模块为低功耗的单片机。Further, the control module is a single-chip microcomputer with low power consumption.

进一步地，所述的数据存储模块用于存储传感器的数据，该数据存储模块可以是一个单独的模块，也可嵌入在控制模块里。Further, the data storage module is used to store the data of the sensor, and the data storage module can be a separate module or embedded in the control module.

进一步地，第一次接收到的超高频数据信息后，控制模块控制温度传感器工作，存储的温度传感器数据作为压电式传感器工作时的温度补偿参数。Further, after the UHF data information is received for the first time, the control module controls the temperature sensor to work, and the stored temperature sensor data is used as the temperature compensation parameter when the piezoelectric sensor works.

进一步地，第二次接收到的超高频数据信息后，控制模块控制传感器模块工作，读取压电传感器的数据，并根据温度传感器的数据补偿压电式传感器的数据，并存储在存储模块内。Further, after receiving the UHF data information for the second time, the control module controls the sensor module to work, reads the data of the piezoelectric sensor, compensates the data of the piezoelectric sensor according to the data of the temperature sensor, and stores it in the storage module. Inside.

进一步地，第三次接收到的超高频数据信息后，控制模块通过无线通信模块发出补偿后的压电式传感器数据。Further, after the UHF data information is received for the third time, the control module sends compensated piezoelectric sensor data through the wireless communication module.

本发明提供了一种带温度补偿的超高频无源压电式传感器，传感器由外部设备提供超高频的能量源，传感器采集到的能量后读取温度传感器的信息并通过第三次提供的能量源将压电式传感器获取的信息温度补偿后通过无线通信模块发出。The invention provides an ultra-high frequency passive piezoelectric sensor with temperature compensation. The sensor is provided with an ultra-high frequency energy source by an external device. After the energy collected by the sensor, the information of the temperature sensor is read and provided by the third time. The energy source of the piezoelectric sensor will send the information obtained by the piezoelectric sensor through the wireless communication module after temperature compensation.

附图说明Description of drawings

图1是本发明的一种带温度补偿的超高频无源压电式传感器示意图。FIG. 1 is a schematic diagram of an ultra-high frequency passive piezoelectric sensor with temperature compensation according to the present invention.

图2是本发明传感器模块示意图。FIG. 2 is a schematic diagram of the sensor module of the present invention.

具体实施方式Detailed ways

下面结合附图，具体阐明本发明的实施方式，附图仅供参考和说明使用，不构成对本发明专利保护范围的限制。The embodiments of the present invention will be explained in detail below with reference to the accompanying drawings. The accompanying drawings are only used for reference and description, and do not limit the scope of the patent protection of the present invention.

实施例1：Example 1:

请参考图1和图2所示，本发明的一种带温度补偿的超高频无源压电式传感器示意图，包括如下部分：Please refer to FIG. 1 and FIG. 2 , a schematic diagram of an ultra-high frequency passive piezoelectric sensor with temperature compensation of the present invention, including the following parts:

10：带温度补偿的超高频无源压电式传感器；10: UHF passive piezoelectric sensor with temperature compensation;

110：能量采集模块，用于采集外部配套读写器发出的电磁波能量；110: Energy collection module, used to collect the electromagnetic wave energy emitted by the external supporting reader;

120：控制模块，可以实现写入制定工作逻辑的程序；120: Control module, which can realize the program written to formulate work logic;

130：传感器模块，包括温度传感器和压电式传感器；130: sensor module, including temperature sensor and piezoelectric sensor;

140：数据存储模块；140: data storage module;

150：无线通信模块，用于与外部配套读写器通信；150: wireless communication module, used to communicate with external supporting reader;

一种带温度补偿的超高频无源压电式传感器10，包括能量采集模块110、控制模块120、传感器模块130、数据存储模块140与无线通信模块150,当带温度补偿的超高频无源压电式传感器第一次接收到的超高频数据信息时，能量采集模块110采集到的足够的工作电量，由控制模块120控制传感器模块130里相应的温度传感器1302工作，并将温度传感器1302感应的温度数据信息存储在数据存储模块140内；当带温度补偿的超高频无源压电式传感器10收到第二次超高频数据信息时，控制模块120控制传感器模块130里的压电式传感器1303工作，同时将采集到的数据根据第一次采集到的温度数据作相应补偿后存储在数据存储模块140内；当带温度补偿的超高频无源压电式传感器10收到第三次超高频数据信息时，控制模块120将相应存储在数据存储模块140内部的数据信息通过无线通信模块150发出。An ultra-high frequency passivepiezoelectric sensor 10 with temperature compensation includes anenergy acquisition module 110, acontrol module 120, asensor module 130, adata storage module 140 and awireless communication module 150. When the source piezoelectric sensor receives the ultra-high frequency data information for the first time, theenergy collection module 110 collects enough working electricity, thecontrol module 120 controls thecorresponding temperature sensor 1302 in thesensor module 130 to work, and the temperature sensor The temperature data information sensed by 1302 is stored in thedata storage module 140; when the ultra-high frequency passivepiezoelectric sensor 10 with temperature compensation receives the second ultra-high frequency data information, thecontrol module 120 controls thesensor module 130. Thepiezoelectric sensor 1303 works, and at the same time, the collected data is stored in thedata storage module 140 after corresponding compensation according to the temperature data collected for the first time; when the ultra-high frequency passivepiezoelectric sensor 10 with temperature compensation is collected At the time of the third ultra-high frequency data information, thecontrol module 120 sends the data information correspondingly stored in thedata storage module 140 through thewireless communication module 150 .

当本带温度补偿的超高频无源压电式传感器10使用时，配套的读写器发出第一次超高频电磁波，能量采集模块110会采集环境中的电磁波能量。以供控制模块120模块工作。When the UHF passivepiezoelectric sensor 10 with temperature compensation is used, the matched reader/writer sends out the first UHF electromagnetic wave, and theenergy collection module 110 collects the electromagnetic wave energy in the environment. For thecontrol module 120 module to work.

示例性的，参考图2传感器模块包含温度传感器1302、压电式传感器1303。Exemplarily, referring to FIG. 2 , the sensor module includes atemperature sensor 1302 and apiezoelectric sensor 1303 .

示例性的，温度传感器1302可以用来感知环境的温度，控制模块120会根据温度传感器1302的数据来补偿压电式传感器模块1303采集的数据。Exemplarily, thetemperature sensor 1302 can be used to sense the temperature of the environment, and thecontrol module 120 will compensate the data collected by thepiezoelectric sensor module 1303 according to the data of thetemperature sensor 1302 .

在其他实施方式中，压电式传感器模块1303还可包括本领域技术人员可知的其他传感器，可根据本带温度补偿的超高频无源压电式传感器10的实际需求设置，本发明实施例对此不作限定。In other embodiments, thepiezoelectric sensor module 1303 may further include other sensors known to those skilled in the art, which may be set according to the actual requirements of the UHF passivepiezoelectric sensor 10 with temperature compensation. This is not limited.

温度传感器模块1302获取到相应的数据信息后，控制模块120会将数据内容信息保存至数据存储模块140内。After thetemperature sensor module 1302 acquires the corresponding data information, thecontrol module 120 stores the data content information in thedata storage module 140 .

当该带温度补偿的超高频无源压电式传感器10收到配套读写器第二次超高频数据信息后。该带温度补偿的超高频无源压电式传感器10中的控制模块120会根据事先设定好的程序逻辑同时根据事先设定好的程序逻辑对压电式传感器1303的数据进行读取和温度补偿。When the UHF passivepiezoelectric sensor 10 with temperature compensation receives the second UHF data information from the matching reader. Thecontrol module 120 in the UHF passivepiezoelectric sensor 10 with temperature compensation will read and store the data of thepiezoelectric sensor 1303 according to the preset program logic and simultaneously according to the preset program logic. Temperature compensation.

当该带温度补偿的超高频无源压电式传感器10收到配套读写器第三次超高频数据信息后。该带温度补偿的超高频无源压电式传感器10中的控制模块120会根据事先设定好的程序逻辑通过无线通信模块150发出数据信息。When the UHF passivepiezoelectric sensor 10 with temperature compensation receives the third UHF data information from the matching reader. Thecontrol module 120 in the UHF passivepiezoelectric sensor 10 with temperature compensation sends data information through thewireless communication module 150 according to the preset program logic.

以上所揭露的仅为本发明的较佳实施例，不能以此来限定本发明的权利保护范围，因此依本发明申请专利范围所作的等同变化，仍属本发明所涵盖的范围。The above disclosures are only the preferred embodiments of the present invention, which cannot be used to limit the protection scope of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope of the present invention.

Claims (8)

1. The ultrahigh frequency passive piezoelectric sensor with the temperature compensation function comprises an energy acquisition module, a control module, a sensor module, a data storage module and a wireless communication module, and is characterized in that when ultrahigh frequency data information is received by the ultrahigh frequency passive piezoelectric sensor with the temperature compensation function for the first time, enough working electric quantity is acquired by the energy acquisition module, the control module controls corresponding temperature sensors in the sensor module to work, and temperature data information sensed by the temperature sensors is stored in the data storage module; when the ultrahigh frequency passive piezoelectric sensor with the temperature compensation receives second ultrahigh frequency data information, the control module controls the piezoelectric sensor in the sensor module to work, and meanwhile, collected data are correspondingly compensated according to the first collected temperature data and then stored in the data storage module; when the ultrahigh frequency passive piezoelectric sensor with the temperature compensation receives the third ultrahigh frequency data information, the control module sends out the data information correspondingly stored in the data storage module through the wireless communication module.

2. The ultra-high frequency passive piezoelectric sensor with temperature compensation of claim 1, wherein the energy collection module is used for collecting ultra-high frequency signal energy emitted by a matching reader-writer and supplying power to the system.

3. The temperature-compensated uhf passive piezoelectric sensor of claim 1, wherein the sensor module comprises a temperature sensor and a piezoelectric sensor.

4. The ultrahigh-frequency passive piezoelectric sensor with temperature compensation of claim 1, wherein the data storage module is used for storing data information sensed by the temperature sensor and for making corresponding compensation on the piezoelectric sensor data by the control module when receiving a second ultrahigh-frequency signal sent by a matched reader-writer.

5. The temperature compensated uhf passive piezoelectric sensor of claim 1, wherein the wireless communication module operates in the uhf frequency band and receives and transmits uhf data information.

6. A passive uhf sensor and its sensor module as claimed in claim 1 and claim 3, characterized in that the piezoelectric sensor is a deformation sensor, a pressure sensor or a displacement sensor that can be distinguished according to the physical properties it detects.

7. The UHF passive piezoelectric sensor with temperature compensation as claimed in claim 1 and claim 5, wherein the data information sent by the wireless communication module includes the required sensor data information and the identification number of the sensor system, which is used for distinguishing when a plurality of UHF passive piezoelectric sensors with temperature compensation are applied simultaneously.

8. The ultra high frequency passive piezoelectric temperature compensated sensor of claims 1 and 2 wherein the ultra high frequency signal energy required by the ultra high frequency passive piezoelectric temperature compensated sensor is provided by a reader/writer associated therewith.

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